polyhedron(points = [[0,0,0], [1,0,0], [0/0, 0/0, 0/0], [0/0, 0/0, 0/0]],
           faces = [[0,1,3,2]]);
polyhedron(points = [[0,0,0], [1,0,0], [0/0, 0/0, 0/0], [0/0, 0/0, 0/0]],
           faces = [[0,1,2]]);
